Quantitative identification and hazard assessment of potentially unstable rock masses along mountainous transportation corridors
文献类型：期刊论文
| 作者 | Liu, Changqing3,5; Bao, Han2,3,4; Zhang, Jingfeng3; Yang, Jinghao3; Dong, Xuanyan5; Lan, Hengxing1; Koshimura, Shunichi5; Yuan, Wei5 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2026 |
| 卷号 | 183页码:110273 |
| 关键词 | Rock mass engineering Rocky slope Potentially unstable rock mass Point cloud identification Kinematic analysis Rockfall hazard Comprehensive protection |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2025.110273 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Potentially unstable rock masses (PURM) on the high-steep slope are a major trigger of geological disasters in mountainous regions, where their abrupt onset and destructive energy pose severe threats to the transportation infrastructure. Taking a tunnel portal section of the Yibin-Panzhihua Expressway in China as a case study, this study developed a methodology for identifying PURM and assessing rockfall hazards, analyzed their spatial distribution and movement characteristics. A total of 102 PURM were identified across nine source areas. Wedge sliding was the dominant failure mode, followed by toppling and planar sliding. The volumes generally followed a log-normal distribution, with mean values ranging from 1.453 to 2.866 m(3). They exhibited significant differences in morphological and quantitative distribution characteristics among source areas. PURM in high-elevation areas possessed greater gravitational potential energy, and three-dimensional movement simulations of rockfalls were conducted using Rockfall Analyst. Results revealed that clustered rockfalls exhibit pronounced spatial differentiation and topographic sensitivity during their motion, with maximum jump heights of 28 m, peak velocities of 44 m/s, and peak kinetic energies reaching 4390 kJ. In addition, several rockfall trajectories converge directly toward the tunnel portal, creating a high hazard and emphasizing the need for an integrated mitigation strategy that combines hierarchical protection, rigid-flexible systems, and route optimization. This study provides theoretical support and a technical framework for hazard forecasting and rockfall mitigation along mountainous transportation corridors. |
| URL标识 | 查看原文 |
| WOS关键词 | PROTECTION ; FAILURE |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001660686000002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219647]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Bao, Han; Yuan, Wei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China; 2.State Key Lab Loess Sci, Xian 710054, Peoples R China; 3.Changan Univ, Sch Highway, Xian 710064, Peoples R China; 4.Xian Key Lab Geotech Engn Green & Intelligent Tra, Xian 710064, Shaanxi, Peoples R China 5.Tohoku Univ, Int Res Inst Disaster Sci, Sendai, Miyagi 9808572, Japan; |
| 推荐引用方式 GB/T 7714 | Liu, Changqing,Bao, Han,Zhang, Jingfeng,et al. Quantitative identification and hazard assessment of potentially unstable rock masses along mountainous transportation corridors[J]. ENGINEERING FAILURE ANALYSIS,2026,183:110273. |
| APA | Liu, Changqing.,Bao, Han.,Zhang, Jingfeng.,Yang, Jinghao.,Dong, Xuanyan.,...&Yuan, Wei.(2026).Quantitative identification and hazard assessment of potentially unstable rock masses along mountainous transportation corridors.ENGINEERING FAILURE ANALYSIS,183,110273. |
| MLA | Liu, Changqing,et al."Quantitative identification and hazard assessment of potentially unstable rock masses along mountainous transportation corridors".ENGINEERING FAILURE ANALYSIS 183(2026):110273. |
入库方式： OAI收割
来源：地理科学与资源研究所
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